Triple chip ground carbide tip bandsaw blade with ductile filler
First Claim
Patent Images
1. In a bandsaw blade for high speed, heavy duty cutting of a workpiece, the combination comprising:
- a blade body of a continuous loop of hardened and tempered metal having a plurality of cutting tooth support means defined along the peripheral edge thereof and separated by gullet means;
a plurality of carbide cutting teeth mounted on said blade body in the tooth support means thereof and arranged in pairs;
each pair of said cutting teeth including a leading high tooth and a trailing low tooth constructed and arranged to effect a triple-chip cutting operation on the workpiece; and
,solder means for securing said cutting teeth to said cutting tooth support means, said solder means including ductile means therein for absorbing the stress forces induced in the tooth support means under dynamic load conditions.
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Abstract
A bandsaw blade including a continuous loop of hardened tempered bandsaw steel having carbide-tipped teeth arranged in pairs, each pair including a "high" tooth and a "low" tooth shaped to provide triple-chip cutting action and ground to provide radial and tangential relief angles on side surfaces of each saw tooth to reduce blade vibration during cutting. The teeth are secured to the blade body by brazing with a solder which includes a discrete layer of a ductile metal which absorbs forces induced in the brazing zone under dynamic load conditions.
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Citations
24 Claims
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1. In a bandsaw blade for high speed, heavy duty cutting of a workpiece, the combination comprising:
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a blade body of a continuous loop of hardened and tempered metal having a plurality of cutting tooth support means defined along the peripheral edge thereof and separated by gullet means; a plurality of carbide cutting teeth mounted on said blade body in the tooth support means thereof and arranged in pairs; each pair of said cutting teeth including a leading high tooth and a trailing low tooth constructed and arranged to effect a triple-chip cutting operation on the workpiece; and
,solder means for securing said cutting teeth to said cutting tooth support means, said solder means including ductile means therein for absorbing the stress forces induced in the tooth support means under dynamic load conditions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 14, 15)
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11. In a bandsaw blade for high speed, heavy duty cutting of a workpiece, the combination comprising:
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a blade body of a continuous loop of hardened and tempered metal, having a plurality of cutting tooth support means defined along the peripheral edge thereof and separated by gullet means; a plurality of carbide cutting teeth mounted on said blade body in the tooth support means thereof and arranged in pairs to effect a triple-chip cutting operation on a workpiece; and
,solder means for securing said cutting teeth to said tooth support means; each pair of cutting teeth including a leading high tooth and a trailing low tooth shorter than said high tooth, each tooth including a top surface, a front surface and first and second side surfaces, said top surfaces of said high and low teeth being inclined rearwardly from corresponding front surfaces, relative to the longitudinal axis of said blade body defining a clearance angle for said high and low teeth, said front surfaces of said high and low teeth being positively raked, defining a face angle for said high and low teeth, said first and second side surfaces of said high and low teeth being inclined radially and tangentially of the longitudinal axis of said blade body, defining radial and tangential relief angles for said high and low teeth, and corner portions of said leading high tooth being cut away to expose corner cutting edges of the following low teeth to the workpiece, and said solder means including a ductile metal means therein for absorbing stress forces induced in the tooth support means under dynamic load conditions. - View Dependent Claims (12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification